New unopened HP 56 black ink for $8 (40% off)

New unopened HP 56 Black Inkjet Print Cartridge for $8.

I bought a new printer and don't need this ink anymore.

Original on amazon was $12.95 + shipping:

http://www.amazon.com/Black-Inkjet-Print-Cartridge-C6656AN/dp/B000069LI9